GW Instek PPH-1503 - Manual (Page 25)

OVERVIEW
25
Constant Voltage/Constant Current Crossover
Characteristics
Background The unit will switch automatically between
constant voltage and constant current according to
changes in the load.
CV mode When the load current is less than the current
setting, the unit operates in constant voltage mode,
changing the current level according to the load
but maintaining the set voltage level until the
current reaches the set current level. The status
indicator will show CV on the LCD when in CV
mode.
Constant Current
Mode When the output current reaches the set current
level, the unit switches operation to constant
current mode. The status indicator will show CC
on the LCD display. In CC mode, the current level
is maintained and the voltage level is limited to
less than the set voltage level to limit the output
power from an overload. When the current drops
below the set current level, the unit will revert
back to CV mode.